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round volume to nearest 10%

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This commit is contained in:
uwaa 2025-01-29 04:15:26 +00:00
parent b9540a6ac3
commit a1abd32939
1 changed files with 10 additions and 4 deletions
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14
static/rot/rot.js
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@ -50,8 +50,14 @@
localStorage.audiovolume = number; //Save
updateVolumeLabel();
}
function volumeAdd(number) {
volumeSet(Math.min(1, Math.max(0, audio.volume + number)));
function volumeInc() {
//We would not need to multiply by 10 and truncate if
//not for javascript constantly spewing rounding errors.
//But we do not live in an ideal world.
volumeSet(Math.min(1, Math.floor((Math.trunc(audio.volume * 1000) / 100) + 1) * 0.1));
}
function volumeDec() {
volumeSet(Math.max(0, Math.ceil((Math.trunc(audio.volume * 1000) / 100) - 1) * 0.1));
}
function updateVolumeLabel() {
const percentage = `${Math.round(audio.volume * 100)}%`;
@ -378,8 +384,8 @@
localStorage.audiomuted = audio.muted = musicmute.checked;
playMusic();
})
volumeStepDwn.addEventListener('click', () => volumeAdd(-0.05));
volumeStepUp.addEventListener('click', () => volumeAdd(0.05));
volumeStepDwn.addEventListener('click', volumeDec);
volumeStepUp.addEventListener('click', volumeInc);
updateVolumeLabel();
}